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J Chromatogr Sci
January 2025
Division of Chemical and Material Metrology, Korea Research Institute of Standards and Science, 267, Gajeong-ro, Yuseong-gu, Daejeon, 34113Republic of Korea.
We developed a reversed-phased high-performance liquid chromatographic method combining ultraviolet detection and integrated pulsed amperometric detection for the simultaneous quantification of dopamine, 5-hydroxyindolacetic acid, homovanillic acid, serotonin, 3,4-dihydroxyphenylacetic acid, norepinephrine and epinephrine. All target components were completely separated in a C18 column with isocratic elution of 5% acetonitrile solution containing 8 mM HClO4 and 0.20 mM 1-octanesulfonic acid as an ion pairing reagent.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Neuroscience Research Institute, Gachon University, Incheon 21565, Republic of Korea.
To elucidate the potential roles of presynaptic and postsynaptic serotonergic activity in impulsivity traits, we investigated the relationship between self-reported impulsiveness and serotonin transporter (5-HTT) and 5-HT2A receptors in healthy individuals. In this study, 26 participants completed 3-Tesla magnetic resonance imaging and positron emission tomography with [C]DASB and [C]MDL100907. To quantify 5-HTT and 5-HT2A receptor availability, the binding potential (BP) of [C]DASB and [C]MDL100907 was derived using the simplified reference tissue model with cerebellar gray matter as the reference region.
View Article and Find Full Text PDFToxics
December 2024
Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing 211166, China.
Methamphetamine (METH) abuse disrupts the homeostasis of neurotransmitter (NT) metabolism, contributing to a wide range of neurological and psychological disorders. However, the specific effects of METH on NT metabolism, particularly for the tryptophan (TRP) and tyrosine (TYR) metabolic pathways, remain poorly understood. In this study, serum samples from 78 METH abusers and 79 healthy controls were analyzed using Ultra-High-Performance Liquid Chromatography with Tandem Mass Spectrometry (UHPLC-MS/MS).
View Article and Find Full Text PDFCureus
November 2024
Psychology, Maudsley Health, Al Amal Psychiatric Hospital, Dubai, ARE.
This case report discusses the treatment of a 42-year-old male with over a decade of treatment-resistant obsessive-compulsive disorder (OCD) and comorbid major depressive disorder (MDD). The patient underwent various pharmacological and psychotherapeutic treatments, including multiple antidepressants and cognitive-behavioral therapy (CBT), yet experienced only partial symptom relief. At baseline, the patient's depressive symptoms were severe, with a Hamilton Depression Rating Scale (HAM-D) score of 28, and his obsessive-compulsive symptoms were marked, with a Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) score of 34.
View Article and Find Full Text PDFJ Clin Psychopharmacol
December 2024
From the Albert Einstein College of Medicine, Bronx, NY.
Following a decades-long decline in psychedelic research resulting from social, political, and legislative factors, there has been greatly renewed interest in these compounds' ability to treat psychiatric disorders. Classic psychedelics, encompassing both natural and synthetic psychoactive compounds, are characterized by their action as agonists or partial agonists of serotonin 5-hydroxytryptamine 2A receptors. In this comprehensive review, we summarize the latest clinical trials of classic psychedelics on depression and anxiety, attending to the patient demographics and methodology of each study.
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